the present invention includes the steps of providing a colored zirconia powder and white zirconia powder, the desired hue in order to give a gradient, more it is blended with the colored zirconia powder and the white zirconia powder the colored zirconia powder mixing ratios were mixed differently between said white zirconia powder and a different weight ratios and the stage of preparing a number of raw materials, said the order of the raw material content is often colored zirconia powder, or sequentially compression molding mold or molding the plurality of raw materials in the order of the raw material content of the colored zirconia powder is less a step of molding is injected into the frame, a method of manufacturing an artificial tooth for zirconia block having a color gradient which is characterized in that it comprises a step of calcining the molded resultant structure. According to the present invention, it is possible hue gradient natural tooth has to be implemented by zirconia block itself, without using the liquid set of coating material and liquid, to express the aesthetics of natural teeth.BACKGROUND 1本発明は、有色ジルコニア系粉末と白色ジルコニア系粉末を準備する段階と、所望する色相勾配を出すために、前記有色ジルコニア系粉末と前記白色ジルコニア系粉末との配合比が異なるように混合して前記有色ジルコニア系粉末と前記白色ジルコニア系粉末とが互いに異なる重量比で配合された複数個の原料を準備する段階と、前記有色ジルコニア系粉末の含量が多い原料の順に、または前記有色ジルコニア系粉末の含量が少ない原料の順に前記複数個の原料を順次的に圧縮成形用モールドまたは成型枠に注入して成形する段階と、成形された結果物を仮焼する段階とを含むことを特徴とする色相勾配を有する人工歯牙用ジルコニアブロックの製造方法に関する。本発明によれば、自然歯牙が有している色相勾配をジルコニアブロック自体で実現し、塗材や液状のリキッドセットを用いず、自然歯牙の審美性を表現することができる。【選択図】図1
